#4 Welding Cable vs. #4 Automotive Cable

#4 Welding Cable has 413 strands of copper. The large number of strands create less resistance since electric current travels on the surface of wire. This feature, coupled with the rope type design cause welding cable to be double flexible. The insulation is made of ethylene propylene rubber and is good for use to -40 degrees Fahrenheit. It offers super resistance to oil, grease and acid. #4 Automotive Cable has approximately 45 strands of solid stiff copper wire. The insulation is generally neoprene, has little elasticity, and sometimes cracks under extremely cold conditions. Automotive cable has inferior flexibility characteristics.
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